service repair manual

1. 6901177 (3-06) Printed in U.S.A. © Bobcat Company 2006
Service
Manual
S/N 52001100 & Above
S/N 519911001 & Above
EQUIPPED WITH
BOBCAT INTERLOCK
CONTROL SYSTEM (BICS™)

2. MAINTENANCE SAFETY
WARNING
Instructions are necessary before operating or servicing machine. Read and
understand the Operation & Maintenance Manual, Operator’s Handbook and
signs (decals) on machine. Follow warnings and instructions in the manuals
when making repairs, adjustments or servicing. Check for correct function after
adjustments, repairs or service. Untrained operators and failure to follow
instructions can cause injury or death. W-2003-0903
Never service the Bobcat Skid-
Steer Loader without instructions.
Have good ventilation when
welding or grinding painted
parts.
Wear dust mask when grinding
painted parts. Toxic dust and gas
can be produced.
Avoid exhaust fume leaks which
can kill without warning. Exhaust
system must be tightly sealed.
Stop, cool and clean engine of
flammable materials before
checking fluids.
Never service or adjust loader
with the engine running unless
instructed to do so in the
manual.
Avoid contact with leaking
hydraulic fluid or diesel fuel
under pressure. It can penetrate
the skin or eyes.
Never fill fuel tank with engine
running, while smoking or when
near open flame.
Disconnecting or loosening any
hydraulic tubeline, hose, fitting,
component or a part failure can
cause lift arms to drop. Do not go
under lift arms when raised
unless supported by an
approved lift arm support device.
Replace it if damaged.
Keep body, jewelry and clothing
away from moving parts,
electrical contact, hot parts and
exhaust.
Wear eye protection to guard
from battery acid, compressed
springs, fluids under pressure
and flying debris when engines
are running or tools are used.
Use eye protection approved for
type of welding.
Keep rear door closed except for
service. Close and latch door
before operating the loader.
Never work on loader with lift
arms up unless lift arms are held
by an approved lift arm support
device. Replace if damaged.
Never modify equipment or add
attachments not approved by
Bobcat Company.
Lead-acid batteries produce
flammable and explosive gases.
Keep arcs, sparks, flames and
lighted tobacco away from
batteries.
Batteries contain acid which
burns eyes or skin on contact.
Wear protective clothing. If acid
contacts body, flush well with
water. For eye contact flush well
and get immediate medical
attention.
Use the correct procedure to lift or
lower operator cab.
Cleaning and maintenance are
required daily.
Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by the owner/
operator without any specific technical training. Maintenance procedures which are not in the Operation & Maintenance
Manual must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL. Always use genuine Bobcat
replacement parts. The Service Safety Training Course is available from your Bobcat dealer.
MSW01-0805
WRONG
B-6590
WRONG
B-16102
B-6580
WRONG
B-16102
B-6589
WRONG
B-15280
WRONG
B-15231
WRONG
B-11799
B-10731a
CORRECT
B-12365
CORRECT
B-7469
CORRECT
Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is
involved!” Carefully read the message that follows.

3. 463 Bobcat Loader
Service Manual
ALPHABETICAL INDEX
AIR CLEANER ........................................................ 70-01
AIR CLEANER SERVICE ....................................... 10-01
ALTERNATOR ....................................................... 60-01
AUXILIARY CONTROL LOCKBOLT....................... 10-01
BATTERY................................................................ 60-01
BICS™ (With Press To Operate Button) ................ 60-01
BICS™ BLOCK VALVE .......................................... 20-01
BICS™ SYSTEM CONTROLLER........................... 60-01
BOB-TACH................................................... 10-01, 50-01
CHARGE PRESSURE............................................ 30-01
CHAINCASE .......................................................... 40-01
CONTROLS ........................................................... 20-01
CONTROL PANEL ................................................. 30-01
CONVERSIONS ...............................................SPEC-01
CYLINDER ............................................................. 20-01
DRIVE BELT ........................................................... 30-01
DRIVE COMPONENTS .......................................... 40-01
ELECTRICAL SYSTEM INFORMATION ................ 60-01
ENGINE .................................................................. 70-01
ENGINE COMPONENTS AND TESTING .............. 70-01
ENGINE COOLING SYSTEM................................. 10-01
ENGINE LUBRICATION SYSTEM.......................... 10-01
ENGINE MOUNTING BRACKET ........................... 70-01
ENGINE SPECIFICATIONS.............................. SPEC-01
ENGINE SPEED CONTROL .................................. 70-01
FAN ......................................................................... 70-01
FINAL DRIVE TRANSMISSION (CHAINCASE)......10-01
FLYWHEEL ............................................................ 70-01
FUEL LIFT PUMP ................................................... 70-01
FUEL SYSTEM ....................................................... 10-01
FUEL TANK............................................................. 50-01
GLOWPLUGS ........................................................ 70-01
HYDRAULIC CONNECTION SPEC ..................SPEC-01
HYDRAULIC CONTROL VALVE ............................ 20-01
HYDRAULIC FILTER .............................................. 20-01
HYDRAULIC/HYDROSTATIC
FLUID SPECIFICATIONS .................................SPEC-01
HYDRAULIC/HYDROSTATIC SYSTEM ................ 10-01
HYDRAULIC PUMP................................................ 20-01
HYDRAULIC RESERVOIR ..................................... 20-01
HYDRAULIC SYSTEM INFORMATION.................. 20-01
HYDROSTATIC MOTOR ........................................30-01
HYDROSTATIC PUMP .......................................... 30-01
HYDROSTATIC SYSTEM INFORMATION ............. 30-01
INSTRUMENT PANEL ........................................... 60-01
LIFT ARM SUPPORT DEVICE................................10-01
LIFT ARMS ............................................................. 50-01
LIFTING AND BLOCKING THE LOADER...............10-01
LIGHTS....................................................................60-01
LUBRICATING THE LOADER.................................10-01
MAIN RELIEF VALVE..............................................20-01
MUFFLER................................................................70-01
OPERATOR CAB .........................................10-01, 50-01
OPERATOR SEAT...................................................20-01
PARKING BRAKE....................................................40-01
PIVOT PINS ............................................................10-01
RADIATOR ..............................................................70-01
REAR DOOR...........................................................50-01
REAR WINDOW .....................................................50-01
REMOTE START SWITCH .....................................10-01
RECONDITIONING THE ENGINE..........................70-01
SEAT BAR ..............................................................50-01
SEAT BAR RESTRAINT SYSSTEM........................40-01
SEAT BAR SENSOR...............................................60-01
SERVICE SCHEDULE ............................................10-01
SPARK ARRESTOR MUFFLER..............................10-01
STARTER ................................................................60-01
STEERING ..............................................................30-01
TIRE MAINTENANCE .............................................10-01
TOWING THE LOADER .........................................10-01
THERMOSTAT ........................................................70-01
TORQUE SPECIFICATIONS FOR BOLTS ...... SPEC-01
TRACTION LOCK ...................................................60-01
TRANSPORTING THE LOADER ............................10-01
TROUBLESHOOTING ............................................70-01

4. 463 Bobcat Loader
I Service Manual
CONTENTS
FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II
SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .IX
DELIVERY REPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IX
BOBCAT SKID STEER LOADER IDENTIFICATION . . . . . . . . . . . . X
SAFETY AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . 10-01
HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-01
HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-01
DRIVE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-01
MAIN FRAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-01
ELECTRICAL SYSTEM & ANALYSIS. . . . . . . . . . . . . . . . . . . . . 60-01
ENGINE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-01
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-01
SAFETY AND
MAINTENANCE
HYDRAULIC
SYSTEM
HYDROSTATIC
SYSTEM
s
A
ENGINE
SERVICE
SPECIFICATIONS
CALIFORNIA
PROPOSITION 65 WARNING
Diesel engine exhaust and some of its
constituents are known to the State of California
to cause cancer, birth defects and other
reproductive harm.
DRIVE
SYSTEM
MAIN
FRAME
ELECTRICAL
ANALYSIS
SYSTEM AND

5. 463 Bobcat Loader
II Service Manual
FOREWORD
This manual is for the Bobcat loader excavator mechanic. It provides necessary servicing and adjustment procedures for
the Bobcat loader and its component parts and systems. Refer to the Operation & Maintenance Manual for operating
instructions, starting procedure, daily checks, etc.
A general inspection of the following items must be made after the loader has had service or repair:
1. Check that the ROPS/FOPS
(Including side screens) is in
good condition and is not
modified.
9. The parking brake must
function correctly.
2. Check that ROPS mounting
hardware is tightened and is
Melroe approved.
10. Enclosure door latches must
open and close freely.
3. The seat belt must be
correctly installed, functional
and in good condition.
11. Bob-Tach wedges and
linkages must function
correctly and be in good
condition.
4. The seat bar and pedal
interlocks must be correctly
adjusted, clean and
lubricated.
12. Safety treads must be in good
condition.
5. Check lift arm suport device,
replace if damaged.
13. Check for correect function of
indicator lamps (Optional on
some models).
6. Machine signs must be
legible and in the correct
location.
14. Check hydraulic fluid level,
engine oil level and fuel
supply.
7. Steering levers and foot
pedals must return to neutral.
15. Inspect for fuel, oil or
hydraulic fluid leaks.
8. Check for correct funtion of
the work lights.
16. Lubricate the loader.

6. 463 Bobcat Loader
III Service Manual
17. Check the condition of the
battery and cables.
Recommend to the owner that all
necessary corrections be made
before the machine is returned to
service.
18. Inspect the air cleaner for
damage or leaks. Check the
condition of the element.
19. Check the electrical charging
system.
20. Check tires for wear and
pressure.
21. Inspect for loose or broken
parts or connections.
22. Operate the loader and check
all functions.
23. Check for any field
modification not completed.
24. Check for correct function of
the Bobcat Interlock Control
System (BICS™) before the
machine is returned to the
customer.

7. 463 Bobcat Loader
V Service Manual
SAFETY INSTRUCTIONS
WARNING
Instructions are necessary before operating or
servicing machine. Read and understand the
Operation & Maintenance Manual, Operator’s
Handbook and signs (decals) on machine. Follow
warnings and instructions in the manuals when
making repairs, adjustments or servicing. Check for
correct function after adjustments, repairs or
service. Untrained operators and failure to follow
instructions can cause injury or death.
W-2003-0903
WARNING
Warnings on the machine and in the manuals are for
your safety. Failure to obey warnings can cause
injury or death.
W-2044-1285
IMPORTANT
This notice identifies procedures which must be
followed to avoid damage to the machine.
I-2019-0284
The following publications provide information on the
safe use and maintenance of the Bobcat machine and
attachments:
• The Delivery Report is used to assure that complete
instructions have been given to the new owner and
that the machine is in safe operating condition.
• The Operation & Maintenance Manual delivered with
the machine or attachment contains operating
information as well as routine maintenance and
service procedures. It is a part of the machine and can
be stored in a container provided on the machine.
Replacement Operation & Maintenance Manuals can
be ordered from your Bobcat dealer.
• Machine signs (decals) instruct on the safe operation
and care of your Bobcat machine or attachment. The
signs and their locations are shown in the Operation
& Maintenance Manual. Replacement signs are
available from your Bobcat dealer.
• An Operator’s Handbook fastened to the operator
cab. It’s brief instructions are convenient to the
operator. The handbook is available from your dealer
in an English edition or one of many other languages.
See your Bobcat dealer for more information on
translated versions.
• The AEM Safety Manual delivered with the machine
gives general safety information.
• The Service Manual and Parts Manual are available
from your dealer for use by mechanics to do shop-
type service and repair work.
• The Skid-Steer Loader Operator Training Course is
available through your local dealer or at
www.training.bobcat.com or www.bobcat.com.
This course is intended to provide rules and practices
of correct operation of the Skid-Steer Loader. The
course is available in English and Spanish versions.
• Service Safety Training Courses are available from
your Bobcat dealer or at www.training.bobcat.com
or www.bobcat.com. They provide information for
safe and correct service procedures.
• The Skid-Steer Loader Safety Video is available from
your Bobcat dealer or at www.training.bobcat.com
or www.bobcat.com.
SI SSL-0206 SM
This symbol with a warning statement means:
“Warning, be alert! Your safety is involved!”
Carefully read the message that follows.
Safety Alert Symbol

8. 463 Bobcat Loader
VII Service Manual
SAFETY INSTRUCTIONS (CONT’D)
Fire Prevention
The machine and attachments have components that are
at high temperature under normal operating conditions.
The primary source of high temperatures is the engine
and exhaust system. The electrical system, if damaged
or incorrectly maintained, can be a source of arcs or
sparks.
Flammable debris (leaves, straw, etc.) must be removed
regularly. If flammable debris is allowed to accumulate, it
will increase fire hazard. Clean often to avoid this
accumulation. Flammable debris in the engine
compartment is a potential hazard.
The spark arrestor muffler is designed to control the
emission of hot particles from the engine and exhaust
system, but the muffler and the exhaust gases are still
hot.
• Do not use the machine where exhaust, arcs, sparks
or hot components can contact flammable material,
explosive dust or gases.
• The operator cab, engine compartment, and engine
cooling system must be inspected every day and
cleaned if necessary to prevent fire hazard and
overheating.
• Check all electrical wiring and connections for
damage. Keep the battery terminals clean and tight.
Repair or replace any damaged part.
• Check fuel and hydraulic tubes, hoses and fittings for
damage and leakage. Never use open flame or bare
skin to check for leaks. Tighten or replace any parts
that show leakage. Always clean fluid spills. Do not
use gasoline or diesel fuel for cleaning parts. Use
commercial nonflammable solvents.
• Do not use ether or starting fluids on any engine
which has glow plugs. These starting aids can cause
explosion and injure you or bystanders.
• Always clean the machine, disconnect the battery,
and disconnect the wiring from the controllers before
welding. Cover rubber hoses, battery and all other
flammable parts. Keep a fire extinguisher near the
machine when welding. Have good ventilation when
grinding or welding painted parts. Wear a dust mask
when grinding painted parts. Toxic dust or gas can be
produced.
• Stop the engine and let it cool before adding fuel. NO
SMOKING!
• Use the procedure in the Operation & Maintenance
Manual for connecting the battery and for jump
starting.
• Use the procedure in the Operation & Maintenance
Manual for cleaning the spark arrestor muffler (if
equipped).
Figure 1
• Know where fire extinguishers and first aid kits are
located and how to use them. Fire extinguishers are
available from your Bobcat dealer [Figure 1].
SI SSL-0206 SM

9. 463 Bobcat Loader
IX Service Manual
SERIAL NUMBER LOCATIONS
Always use the serial number of the loader when
requesting service information or when ordering parts.
Early or later models (identification made by serial
number) may use different parts, or it may be necessary
to use a different procedure in doing a specific service
operation.
Bobcat Loader Serial Number
Figure 2
The loader serial number plate is located on the inside of
the operator cab on the right fender and in front of the
seat [Figure 2].
Explanation of loader Serial Number:
Engine Serial Number
Figure 3
The engine serial number is located on the engine fuel
injection pump [Figure 3].
DELIVERY REPORT
Figure 4
The Delivery Report must be filled out by the dealer and
signed by the owner or operator when the Bobcat loader
is delivered. An explanation of the form must be given to
the owner. Make sure it is filled out completely [Figure
4].
P-4399
XXXX XXXXX
Module 2. - Production
Sequence (Series)
Module 1. - Model/Engine
Combination
P-9791
B-16315

10. 463 Bobcat Loader
X Service Manual
BOBCAT SKID STEER LOADER IDENTIFICATION
B-15914
OPERATOR
HANDBOOK
OPERATOR
SEAT
TILT CYLINDER
◆OPERATING LIGHTS
SEAT BAR
GRAB
HANDLES
STEERING
LEVER
SAFETY TREAD
STEPS
†BUCKET
B-15915
◆OPERATING LIGHT
REAR
DOOR
•OPERATOR CAB
(ROPS/FOPS)
UPRIGHTS
LIFT ARM SUPPORT
DEVICE
LIFT ARMS
LIFT CYLINDER
TIRES*
◆ FACTORY OPTION OR FIELD ACCESSORY (Not Standard Equipment)
* TIRES - Flotation tires (Optional) are shown. Bobcats are base-equipped with standard tires.
† BUCKET - Several different buckets and other attachments are available for the Bobcat loader.
• ROPS, FOPS - Roll-Over Protective Structure, Falling Object Protective Structure, per SAE J1040 and ISO
3471, and Falling Object Protective Structure per SAE J1043 and ISO 3449, Level 1. The Bobcat loader is
base-equipped with a standard operator cab as shown. Extra insulated cab is available as an option
(Reduced noise level).

11. 463 Bobcat Loader
10-01-1 Service Manual
SAFETY AND MAINTENANCE
AIR CLEANER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-80-1
Replacing Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . 10-80-1
AUXILIARY CONTROL LOCKBOLT . . . . . . . . . . . . . . . . . . . 10-140-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-140-1
BOB-TACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-150-1
Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . 10-150-1
ENGINE COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 10-90-1
Checking The Coolant Level . . . . . . . . . . . . . . . . . . . . . . . 10-90-1
Cleaning The Cooling System . . . . . . . . . . . . . . . . . . . . . . 10-90-1
Replacing The Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-90-2
ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . 10-110-1
Checking Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-110-1
Oil Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-110-1
Replacing Oil And Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 10-110-1
FINAL DRIVE TRANSMISSION (CHAINCASE) . . . . . . . . . . 10-130-1
Checking And Adding Oil. . . . . . . . . . . . . . . . . . . . . . . . . 10-130-1
FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-100-1
Filling The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-100-1
Fuel Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-100-3
Fuel Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-100-1
Removing Air From The Fuel System . . . . . . . . . . . . . . . 10-100-4
HYDRAULIC/HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . 10-120-1
Checking And Adding Fluid . . . . . . . . . . . . . . . . . . . . . . . 10-120-1
Hydraulic/Hydrostatic Filter Replacement . . . . . . . . . . . . 10-120-2
Replacing The Hydraulic/Hydrostatic Fluid . . . . . . . . . . . 10-120-2
LIFT ARM SUPPORT DEVICE . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1
Disengaging The Lift Arm Support Device. . . . . . . . . . . . . 10-20-2
Engaging The Lift Arm Support Device . . . . . . . . . . . . . . . 10-20-1
LIFTING AND BLOCKING THE LOADER . . . . . . . . . . . . . . . 10-10-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1
LUBRICATING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . 10-160-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-160-1
Continued On Next Page
SAFETY &
SYSTEM
DRIVE
ELECTRICAL
MAINTENANCE
SYSTEM &
ANALYSIS
ENGINE
SERVICE
SPECIFICATIONS

12. 463 Bobcat Loader
10-01-2 Service Manual
SAFETY AND MAINTENANCE (CONT’D)
OPERATOR CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1
Emergency Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-3
Lowering The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . 10-30-2
Raising The Operator Cab. . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1
PIVOT PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-190-1
REMOTE START SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1
SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . 10-200-1
Foot Pedal Clean Out . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-200-2
Seat Bar Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-200-1
Seat Bar Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-200-1
SERVICE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-70-1
Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-70-1
SPARK ARRESTOR MUFFLER . . . . . . . . . . . . . . . . . . . . . . 10-180-1
Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-180-1
TIRE MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1
Tire Inflation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1
Tire Rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1
Wheel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1
TOWING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-1
TRANSPORTING THE LOADER . . . . . . . . . . . . . . . . . . . . . . 10-40-1
Adjusting The Bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1

13. 463 Bobcat Loader
10-10-1 Service Manual
LIFTING AND BLOCKING THE LOADER
WARNING
Instructions are necessary before operating or
servicing machine. Read and understand the
Operation & Maintenance Manual, Handbook and
signs (decals) on machine. Follow warnings and
instructions in the manuals when making repairs,
adjustments or servicing. Check for correct function
after adjustments, repairs or service. Untrained
operators and failure to follow instructions can cause
injury or death [Figure 10-10-1].
W-2003-0199
Figure 10-10-1
Procedure
Always park the loader on a level surface.
WARNING
Put jackstands under the front axles and rear corners
of the frame before running the engine for service.
Failure to use jackstands can allow the machine to
fall or move and cause injury or death.
W-2017-0286
Figure 10-10-2
Put a floor jack under the rear of the loader [Figure 10-
10-2].
Lift the rear of the loader and install jackstands [Figure
10-10-2].
Figure 10-10-3
Put the floor jack under the front of the loader [Figure 10-
10-3].
Lift the front of the loader and put jackstands under the
loader frame.
NOTE: Make sure the jackstands do not touch the
tires.
B-7023
P-7288
P7289

14. 463 Bobcat Loader
10-20-1 Service Manual
LIFT ARM SUPPORT DEVICE
WARNING
Never work on a machine with the lift arms up unless
the lift arms are secured by an approved lift arm
support device. Failure to use an approved lift arm
support device can allow the lift arms or attachment
to fall and cause injury or death.
W-2059-0598
Engaging The Lift Arm Support Device
Figure 10-20-1
Put jackstands under the rear corners of the loader
(Inset) [Figure 10-20-1].
Disconnect the spring from the lift arm support device
retaining pin (Item 1) [Figure 10-20-1], hold the support
device and remove the retaining pin.
Figure 10-20-2
Lower the lift arm support device on top of the lift
cylinder. Fasten the free end of the spring (Item 1)
[Figure 10-20-2] to the lift arm support device so there
will be no interference with the support device
engagement.
With the operator in the seat, seat belt fastened and seat
bar lowered, start the engine. Press the green PRESS
TO OPERATE Button.
Figure 10-20-3
Raise the lift arms until the lift arm support device drops
onto the lift cylinder (Item 1) [Figure 10-20-3].
Lower the lift arms slowly until the support device is held
between the lift arm and the lift cylinder. Stop the engine.
Raise the seat bar and move pedals until both pedals
lock.
P-19458
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15. 463 Bobcat Loader
10-20-2 Service Manual
LIFT ARM SUPPORT DEVICE (CONT’D)
Engaging The Lift Arm Support Device (Cont’d)
Figure 10-20-4
Install the retaining pin (Item 1) [Figure 10-20-4] into the
rear of the lift arm support device below the cylinder rod.
WARNING
Service lift arm support device if damaged or if parts
are missing. Using a damaged lift arm support or
with missing parts can cause lift arms to drop
causing injury or death.
W-2271-1197
Disengaging The Lift Arm Support Device
Figure 10-20-5
Remove the retaining pin (Item 1) [Figure 10-20-5] from
the lift arm support device.
Figure 10-20-6
Connect the spring from the lift arm support device to the
tubeline bracket (Item 1) [Figure 10-20-6] on the lift
arms.
With the operator in the seat, seat belt fastened and seat
bar lowered, start the engine. Press the green PRESS
TO OPERATE Button.
Raise the lift arms a small amount and the spring will lift
the support device off the lift cylinder rod. Lower the lift
arms. Stop the engine.
Raise the seat bar and move pedals until both pedals
lock.
Disconnect the spring from the bracket.
Figure 10-20-7
Raise the support device into storage position and insert
pin through lift arm support device and bracket (Item 1)
[Figure 10-20-7].
Connect spring to pin [Figure 10-20-7].
P-9808
1
P-9808
1
P-9807
1
P-19458
1

16. 463 Bobcat Loader
10-30-1 Service Manual
OPERATOR CAB
Description
WARNING
Before the cab or the lift arms are raised for service,
jackstands must be put under the rear corners of the
frame. Failure to use jackstands can allow the
machine to tip backward causing injury or death.
W-2014-0895
The Bobcat loader has an operator cab (ROPS and
FOPS) as standard equipment to protect the operator
from rollover and falling objects. Check with your dealer
if the operator cab has been damaged. The seat belt
must be worn for roll over protection.
ROPS/FOPS Roll Over Protective Structure per SAE
J1040 and ISO 3471, and Falling Object Protective
Structure per SAE J1043 and ISO 3449, Level 1.
Level 1 - Protection from falling bricks, small concrete
blocks and hand tools encountered in operations such as
highway maintenance, landscaping, and other
construction site services.
Check with your dealer if the operator cab has been
changed.
Figure 10-30-1
The operator cab fastening nuts (Item 1) [Figure 10-30-
1] must be tightened to 40-50 ft.-lbs. (54-68 Nm) torque.
Raising The Operator Cab
Stop the loader on a level surface. Put the lift arms all the
way down.
Install jackstands under the rear of the loader frame.
Open the rear door. (See REAR DOOR on Page 50-70-
1.)
If the lift arms must be up while raising the cab, install the
lift arm support device. (See Engaging The Lift Arm
Support Device on Page 10-20-1.)
Remove the two fasteners (Item 1) [Figure 10-30-1] at
the front (both sides) of the operator cab.
Figure 10-30-2
Stand on the ground. Lift slowly until operator cab is all
the way up [Figure 10-30-2].
The operator cab will lock in the raised position
WARNING
Never modify operator cab by welding, grinding,
drilling holes or adding attachments unless
instructed to do so by Bobcat. Changes to the cab
can cause loss of operator protection from rollover
and falling objects, and result in injury or death.
W-2069-1299
P-19461
1
P-19462

17. 463 Bobcat Loader
10-30-2 Service Manual
OPERATOR CAB (CONT’D)
Lowering The Operator Cab
WARNING
The cab must be held to prevent falling while hand is
in access hole.
W-2205-0695
Figure 10-30-3
Figure 10-30-4
Hold the operator cab. Release the locking mechanism
by pushing the lever (Item 1) [Figure 10-30-3] inward
from the locked position and lifting the lever until it stays
in the unlocked position [Figure 10-30-4].
The pin (Item 2) [Figure 10-30-3] must be retracted from
the hole in the upright before lowering the operator cab.
REMOVE YOUR HAND FROM THE HOLE BEFORE
LOWERING THE OPERATOR CAB
Stand on the ground and pull down on the operator cab.
Avoid slippery surfaces when lowering the cab.
NOTE: Guide the operator cab over the fastening
bolts to prevent thread damage.
Figure 10-30-5
Install the cab washers and nuts. Tighten the nuts (Item
1) [Figure 10-30-5] (both sides) to 40-50 ft.-lbs. (54-68
Nm) torque.
P19498
1
2
P-19499
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18. 463 Bobcat Loader
10-30-3 Service Manual
OPERATOR CAB (CONT’D)
Emergency Exit
Figure 10-30-6
The front opening on the operator cab and rear window
provide exits.
Pull on the tag (Item 1) [Figure 10-30-6] at the top of the
rear window to remove the rubber cord.
Push the rear window out of the rear of the operator cab.
Figure 10-30-7
Exit throught the rear of the cab [Figure 10-30-7].
P-9829
1
P-19463

19. 463 Bobcat Loader
10-40-1 Service Manual
TRANSPORTING THE LOADER
Procedure
WARNING
Adequately designed ramps of sufficient strength are
needed to support the weight of the machine when
loading onto a transport vehicle. Wood ramps can
break and cause personal injury.
W-2058-0494
Figure 10-40-1
Be sure the transport and towing vehicles are of
adequate size and capacity.
A loader with an empty bucket or no attachment must be
loaded backward onto the transport vehicle [Figure 10-
40-1].
The rear of the trailer must be locked or supported
[Figure 10-40-1] when loading or unloading the loader to
prevent the front end of the trailer from raising up.
Adjusting The Bumper
Figure 10-40-2
Use the following procedure to fasten the Bobcat loader
to the transport vehicle to prevent the loader from moving
during sudden stops or when going up or down slopes
[Figure 10-40-2].
Fully lower any bucket or attachment. Stop the engine.
Engage the parking brake.
Fasten chains at the front using the slots in the axle
gussets [Figure 10-40-2]. The counterweight is removed
(Inset) to show clarity. DO NOT operate the loader with
counterweight removed.
Figure 10-40-3
Fasten the rear of the loader as shown with a loop of
chain through the tie down provided [Figure 10-40-3].
B-6198
SUPPORT
P-9927
P-19457
P-9926
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20. 463 Bobcat Loader
10-50-1 Service Manual
TOWING THE LOADER
Procedure
IMPORTANT
Do not push or pull the machine at more than 2 MPH
(3,2 km/h) or for a distance of more than 25 feet (7,6
meters) with the towing tool in place.
I-2017-0389
Be sure the transport and towing vehicles are of
adequate size and capacity.
To prevent damage to the loaders hydrostatic system, a
tow valve is available for towing the loader short distances
at slow speeds. (Example: Moving the loader onto a
transport vehicle.)
A tow valve is available from your dealer and must be
installed before towing the loader.
Raise the operator cab. (See Raising The Operator Cab
on Page 10-30-1.)
Clean the area around the hydrostatic pumps.
Figure 10-50-1
Remove the charge pressure tubeline and fittings (Item
1) [Figure 10-50-1] from the front side of the hydrostatic
pumps.
Figure 10-50-2
Install the tow valves in the fitting holes [Figure 10-50-2].
Figure 10-50-3
Tighten the jam nut (Item 1) [Figure 10-50-3] to 20-25 ft.-
lbs. (27-34 Nm) torque while the tow valve flats are in the
horizontal position.
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21. 463 Bobcat Loader
10-50-2 Service Manual
TOWING THE LOADER (CONT’D)
Procedure (Cont’d)
Figure 10-50-4
Turning the tow valves so the flats are vertical as shown
(Item 1) [Figure 10-50-4] will release the relief valves
and the check valves in the hydrostatic pumps and allow
the loader to be moved.
The towing chain (or cable) must be rated at 1-1/2 times
the weight of the loader. (See Machine Specifications on
Page SPEC-10-1.)
Turn the key switch to ON and press the traction lock
override button.
If the electrical system is not functioning, contact your
Bobcat loader dealer. (Part of the brake system must be
disassembled to move the loader.)
Remove the tow valves and install the fittings and charge
tubelines before operating the loader.
P-21496
1
When flats are vertical
loader can be towed

22. 463 Bocat Loader
10-60-1 Service Manual
REMOTE START SWITCH
Procedure
The tool listed will be needed to do the following
procedure:
MEL1429-B- Remote Start Switch Kit
Kit Includes:
MEL1429-1 Adapter
MEL1429- 2 Start Switch
MEL1429-3 Adapter
The Remote Start Switch is required when the operator
cab is in the raised position for service and the service
technician needs to start the engine. The operator cab
wire harness connectors must be separated from the
engine wiring harness connector under the cab.
The remote start switch is required when the service
technician is adjusting the steering linkage and checking
the hydraulic/hydrostatic system.
WARNING
Put jackstands under the front axles and rear corners
of the frame before running the engine for service.
Failure to use jackstands can allow the machine to
fall or move and cause injury or death.
W-2017-0286
WARNING
Never work on a machine with the lift arms up unless
the lift arms are secured by an approved lift arm
support device. Failure to use an approved lift arm
support device can allow the lift arms or attachment
to fall and cause injury or death.
W-2059-0598
Lift and block the loader. (See LIFTING AND BLOCKING
THE LOADER on Page 10-10-1.)
Raise the lift arms and install the lift arm support device.
(See Engaging The Lift Arm Support Device on Page 10-
20-1.)
Raise the operator cab. (See Raising The Operator Cab
on Page 10-30-1.)
Figure 10-60-1
Connect the remote start switch to the connectors (Item
1) [Figure 10-60-1].
Replace the inner filter every third time the outer filter is
replaced or as indicated by the Service Schedule.
P-7523
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23. 463 Bobcat Loader
10-60-2 Service Manual
REMOTE START SWITCH (CONT’D)
Procedure (Cont’d)
Figure 10-60-2
NOTE: On late model loaders, the connector on the
BICS™ harness is a round 7-pin connector,
NOT a rectangular 8-pin connector. Use the
adapter (Item 1) [Figure 10-60-2] if your loader
has a round 7-pin BICS harness connector.
Figure 10-60-3
Put the traction lock override switch (Item 1) [Figure 10-
60-3] in the ON position so the traction function is locked.
The wheels are not able to turn.
Turn the key to the right and start the engine.
Figure 10-60-4
Move the traction lock override switch (Item 1) [Figure
10-60-4] to the OFF position so the traction function is
unlocked. The wheels are now able to turn.
P-7101
1
P-4713
1
P-4714
1

24. Suggest:
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Please download this document
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25. 463 Bobcat Loader
10-70-1 Service Manual
SERVICE SCHEDULE
Chart
Maintenance work must be done at regular intervals. Failure to do so will result in excessive wear and early failures. The service
schedule is a guide for correct maintenance of the Bobcat loader.
WARNING
Instructions are necessary before operating or servicing machine. Read
and understand the Operation & Maintenance Manual and signs (decals) on
machine. Follow warnings and instructions in the manuals when making
repairs, adjustments or servicing. Check for correct function after
adjustments, repairs or service. Untrained operators and failure to follow
instructions can cause injury or death.
W-2003-1285
❑ Check wheel nut torque every 8 hours for the first 24 hours.
• Also replace hydraulic/hydrostatic filter element when the transmission warning light stays on for five minutes after the hydraulic fluid is at operating
temperature.
■ Or every 12 months.
SERVICE SCHEDULE HOURS
ITEM SERVICE REQUIRED 8-10 50 100 250 500 ■1000
Engine Air Cleaner Empty the dust cup & replace the filter as needed.
Engine Oil Check the engine oil level and add oil as needed.
Engine Cooling Sys-
tem
Clean debris from oil cooler, radiator and grill. Check coolant level in
recovery tank. Add coolant as needed.
Tires Check for damaged tires and correct air pressure.
Indicators, Gauges, &
Lights (Opt.)
Check for correct operation of all indicators, gauges & lights (Opt.).
Seat Belt, Seat Bar Check the condition of the seat belt. Check the seat bar & pedal interlocks
for correct operation. Clean dirt and debris from moving parts.
Safety Signs (Decals)
and Safety Tread
Check for damaged sign (decals) and safety treads. Replace any signs or
safety treads that are damaged or worn.
Lift Arms and Bob-
Tach Pivot Pins and
Wedges
Lubricate with multi-purpose lithium based grease.
Engine Fuel Filter Remove the water from the filter.
Hydraulic Fluid, Hoses
and Tubelines
Check fluid level and add as needed. Check for damage and leaks. Repair
or replace as needed.
Bobcat Interlock Con-
trol System (BICS™)
Check BICS™ System Controller functions. Clean dirt, debris or objects
from under or behind seat as required.
Battery Check cables, connections and electrolyte level. Add distilled water as
needed.
Control Pedals &
Steering
Check for correct operation. Repair or adjust as needed.
Bob-Tach Check locking levers & wedges for condition & operation.
Wheel Nuts ❑Check for loose wheel nuts & tighten to 40-45 ft.-lbs. (54-61 Nm) torque.
Parking Brake Check operation.
Alternator Belt Check belt tension and adjust as needed.
Engine Oil and Filter Replace oil and filter. (See Oil Chart on Page 10-110-1.)
Hydraulic Filter Ele-
ment
Replace Filter Element.
Spark Arrestor Muffler Clean the spark chamber.
Drive Belt Clean the spark chamber.
Steering Lever Pivots Lubricate grease fittings and oil hole in the steering shaft.
Engine Fuel Filter Replace the filter element.
Hydraulic Reservoir
Breather
Replace the breather cap.
Final Drive Trans
(Chaincase)
Replace the fluid.
Hydraulic/Hydrostatic
Reservoir
•Replace the fluid.